Combined square, level, and compass.



B. RUDOLFF.

comma) SQUARE, LEVEL, AND COMPASS.

APPLICATION HLED JULY 13, I914.

Patented Apr. 27, 1915.

2 SHEETSSHEET 1- witnesses IHE NORRI PETERS c0. PHOTG LITHOH WASHINGTON.D. C.

B. RUDOLFF.

COMBINED SQUARE, LEVEL, AND COMPASS.

APPLICATION FILED JULYI3. 1914.

Patented Apr. 27, 1915.

2 SHEETS-SHEET 2.

Wihaaoow BARNET RUDOLFF, OF BAYONNE, NEW JERSEY, ASS IGhTOR TO JERSEYCITY, NEW JERSEY.

rennin nonrson, or

COMBINED SQUARE, LEVEL, .AND COMPASS.

Specification of Letters Patent.

Patented Apr. 2'7, 1915.

Application filed July 13, 1914. Serial ITO/850,710.

Squares, Levels, and Compasses, of which the following is aspecification.

This invention relates to combined squares, levels and compasses, andone of the principal objects of the invention is to provide a tool ofcompact form which can be quickly converted from a square and level to acompass and which can be folded within a small space when not requiredfor use. The above and other objects may be attained by means of theconstruction illustrated in the accompanying drawings, in which,

Figure 1 is a perspective view of a combined square, level and compass,made in accordance with this invention and shown folded, Fig. 2 is asectional view taken on the line 22 of Fig. 1, Fig. 3 is a sideelevation of the device when opened out for use as a square, Fig. 4 is aside elevation showing the parts opened out to be used as a level or asa rule, Fig. 5 is a sectional view at one of the joints and showing alatch for holding the parts in a proper position, Fig. 6 is a similarview showing the latch retracted and disposed in a recess, Fig. 7 is asimilar view of the other latch used for holding the parts in theirproper relative positions, and Fig. 8 is a detail sectional view showingone of the compass points. 7

Referring to the drawings, the numeral 1 designates the main member ofthe square provided with an angular flange or head 2, said members 1 and2 forming practically an L in cross section, as shown more clearly inFig. 2. The companion member 3 is substantially L-shape in crosssection, and is provided with an angular portion 4. An extension 5 ispivoted at 7 to the member 4 and a tri-square member 6 is pivoted at 8'to the member 1. For holding the members 4 and 6 in an extendedposition, a latch 9 is pivoted to the member 4 in a recess 10, and saidlatch is provided with a nose 11 and is pivoted at 12 in said recess. Aspiral spring 13 bears upward against the opposite end of the latch, andnormally holds the nose 11 within the latch. A screw 14, however, may bescrewed down to force the nose lloutward into the recess 15 in themember 5 for holding the parts extended. A spirit level 16 is mounted inthe member 3 and a similar level 14 is mounted in the member 4.

The members 1 and 3 are connected together by a pivot 18 and for holdingsaidmembers in extended position a suitable latch 19 is pivoted at 20 ina recess 21 in the member 4, said latch having a nose 22 adapted toproject into a recess 23 in the member 1. The opposite end of the latch19 is provided with a circular recess 24 and a spirit level 25 ismounted underneath the said recess. A screw 26 is inserted through thering portion of thelatch 19 and a spiral spring 27 surrounds the screwand normally holds the nose 22 within the recess 21. When the screw 26is turned into the member 4, the nose 22 is projected into the notch 23in the member 1.

Mounted in the ends of each of the members 5 and 6 is a compass point28, mounted to slide in a recess 29 and provided with a binding screw30, the shank of which extends through a slot 31. When the tool isopened out it may be used as a compass, in which the two elements arepivoted at the point 18. 7

From the foregoing it will be obvious that the tool may be readilyopened out to be used as a square, as a level, or the points 28 may beextended to provide an efficient compass.

The tool is simple in construction, can be manufactured at low cost, andis very eificient for its purpose.

Various changes may be made in the die tails of construction withoutdeparting from the spirit and scope of the invention as defined in theclaim.

What is claimed is z- A combined square and level comprising two membersof L-shape in cross section pivotally connected together at one of theirends, and provided with recesses,extens ions pivoted to said members attheir free ends, latches for holding the members in extended position,said latches comprising pivoted members having projecting portions toadapted to be inclosed between the L-shape ARTHUR RUDOLPH, members whenfolded. SADIE RUDOLPH.

In testimony whereof I afii n presence of two witnesses.

BARNET RUDOLFF.

X my signature y addressing the Commissioner of Patents, Washington, D.C.

